Author Topic: Parallel guide minimum rail length for 8' rip  (Read 888 times)

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Offline giono2

  • Posts: 13
Parallel guide minimum rail length for 8' rip
« on: November 30, 2017, 03:14 PM »
Anybody tell me the minimum rail length required to use parallel guides and rip 8' (96").  I thought the 106" would work as the parallel guide width seems to be about 3" (96"+3"+3"=102").  Then I noticed at the clamps that hold the parallel guide to the rail are significantly wider which makes me think the rail needs to be the next size up.  Anybody able to answer this from experience?

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Offline Don T

  • Posts: 1708
  • Phoenix, Az
Re: Parallel guide minimum rail length for 8' rip
« Reply #1 on: November 30, 2017, 06:00 PM »
I do believe the 106" rail will work for the TS55 but if you have the TS75 the 118" rail would be much better.
RO150, C12, DF 500 Q, CT33, TS75, MFT3, Kapex 120, MFT3/Kapex, MFK 700, RO 90, ETS150/3, CT22, Centrotec Installers Kit, Parallel Guides & Ext, Carvex, OF1400, LR32 Set, MFS400 w/700 rails, KA UG Set, First Aid Kit, RTS 400 EQ, Vecturo OS400 Set, CT Wings, CT Drill Guide, Pro 5, CXS

Offline Naildrivingman

  • Posts: 362
Re: Parallel guide minimum rail length for 8' rip
« Reply #2 on: November 30, 2017, 09:11 PM »
I have a TS 75 and 106” rail.  The combination works fine.
Dance with who brung ya...

Offline SRSemenza

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  • Posts: 8067
  • Finger Lakes Region, NY State , USA
Re: Parallel guide minimum rail length for 8' rip
« Reply #3 on: November 30, 2017, 11:50 PM »
 @giono2  The way the guides attach does not take away from the run in / out space for the saw. The saw runs right past them.

Seth

Offline PaulH99

  • Posts: 43
Re: Parallel guide minimum rail length for 8' rip
« Reply #4 on: December 01, 2017, 05:22 AM »
I have the 1400 (4.5 feet) and 1900 (6.25 feet) rails. When necessary I connect them together with a pair of the Makita rail guide connectors. Storage of both is easy and the Makita connectors are vastly superior to the Festool connectors.
-Paul
CT 26 • DF 500 • ETS 125 • KS 120 • OF 1400 • PS 430 • RO 125 • TS 55 R

Offline giono2

  • Posts: 13
Re: Parallel guide minimum rail length for 8' rip
« Reply #5 on: December 01, 2017, 08:53 AM »
@SRSemenza that much I had figured out, I was more curious about how much the connection piece moved the extrusion in from the end of the rail.  It seem like if the outer edge of the extrusion and the end of the rail are offset by say 2" at an absolute minimum, then the entire setup won't clear a 96" sheet.  For the price difference I may just take the 118" rail and not have to worry.

Offline giono2

  • Posts: 13
Re: Parallel guide minimum rail length for 8' rip
« Reply #6 on: December 01, 2017, 08:58 AM »
@PaulH99 I already have 2 55" rails that I join when I need to, but I'm not sold on their accuracy.  On my longer rips I feel like I get a bow or belly in the cut.  I feel like the rails are flexing at the joint, but it could be poor technique too.  My thought was that getting a full length rail would eliminate this all together.

Offline SRSemenza

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  • Posts: 8067
  • Finger Lakes Region, NY State , USA
Re: Parallel guide minimum rail length for 8' rip
« Reply #7 on: December 01, 2017, 09:42 AM »
The guide bracket is about 5" wide. About 1" of the bracket width is   inside  the plywood length. Leaving 4"  to account for on each end. So 104" .   106" rail will just do it with a bit of wiggle room. Personally I prefer the 118" rail even without parallel guides on the end. 118" is just a bit easier to position and more versatile if ripping boards. Such as  rough length  "eight foot" lumber.

Seth

Offline PaulH99

  • Posts: 43
Re: Parallel guide minimum rail length for 8' rip
« Reply #8 on: December 01, 2017, 08:09 PM »
Seriously, get the Makita connectors. Vastly better than the Festool connector for the same price. They will change your mind about joining two tracks together.

@PaulH99 I already have 2 55" rails that I join when I need to, but I'm not sold on their accuracy.  On my longer rips I feel like I get a bow or belly in the cut.  I feel like the rails are flexing at the joint, but it could be poor technique too.  My thought was that getting a full length rail would eliminate this all together.
-Paul
CT 26 • DF 500 • ETS 125 • KS 120 • OF 1400 • PS 430 • RO 125 • TS 55 R

Offline giono2

  • Posts: 13
Re: Parallel guide minimum rail length for 8' rip
« Reply #9 on: December 01, 2017, 09:40 PM »
Thanks for the help all.  Some good ideas to try here.

Offline SS Teach

  • Posts: 267
Re: Parallel guide minimum rail length for 8' rip
« Reply #10 on: December 02, 2017, 09:32 AM »
No question about it the Makita connectors are superior. I would also recommend the Betterly Straight Line Connector. It is very easy to use and as the name suggests you get a straight connection. Good luck.
RTS 400, LS 130, Sandpaper Systainer, Profile Systainer. ETS 125, Sandpaper Systainer, Ro 90, Sandpaper Systainer,  Ro 150, Sandpaper Systainer, OF 1400, TS 55 REQ, CT36, CXS Li 1.5 Set, Centrotec Wood-Drill-Set/8pcs, CT Wings, Surfix Set.

Offline Naildrivingman

  • Posts: 362
Re: Parallel guide minimum rail length for 8' rip
« Reply #11 on: December 03, 2017, 07:55 AM »
I have not personally used the Makita connectors and the Betterly gauge, but I have a very particular coworker who produces fine work.  He uses both of them...nuff said.

I also feel the same way about the Makita splinterguard for the same reasons.

I do not join rails, so I will not be investing in the connectors or the gauge, but I will be converting to the Makita splinterguards.
Dance with who brung ya...